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PERMANENT MAGNET MOTOR AND ELECTRICALLY-DRIVEN ROTARY SHOVEL USING THE SAME
PROBLEM TO BE SOLVED: To provide a permanent magnet motor having variable properties.SOLUTION: Multiple high-coercivity magnets 124 are disposed at first positions r1 radially inside of or on a surface of a rotor core 122 while interposing a space 128 therebetween in a circumferential direction. Multiple low-coercivity magnets 126 are provided at second positions r2 radially inside of or on the surface of the rotary core 122. Each of the multiple low-coercivity magnets 126 is disposed at a position in the circumferential direction corresponding to the space 128. The multiple high-coercivity magnets 124 are magnetized in the circumferential direction and polarities of the adjacent high-coercivity magnets 124 are reverse. The multiple low-coercivity magnets 126 are magnetized in the radial direction, and their polarities are switchable.SELECTED DRAWING: Figure 1
【課題】特性が可変である永久磁石モータを提供する。【解決手段】複数の高保磁力磁石１２４は、回転子鉄心１２２の径方向の内部または表面の第１位置ｒ１に、周方向にスペース１２８を隔てて配置される。複数の低保磁力磁石１２６は、回転子鉄心１２２の径方向の内部または表面の第２位置ｒ２に設けられる。複数の低保磁力磁石１２６はそれぞれ、スペース１２８に対応する周方向の位置に配置される。複数の高保磁力磁石１２４は、周方向に磁化され、隣接する高保磁力磁石１２４の極性が逆向きである。複数の低保磁力磁石１２６は、径方向に磁化され、それぞれの極性が切りかえ可能である。【選択図】図１
PERMANENT MAGNET MOTOR AND ELECTRICALLY-DRIVEN ROTARY SHOVEL USING THE SAME
PROBLEM TO BE SOLVED: To provide a permanent magnet motor having variable properties.SOLUTION: Multiple high-coercivity magnets 124 are disposed at first positions r1 radially inside of or on a surface of a rotor core 122 while interposing a space 128 therebetween in a circumferential direction. Multiple low-coercivity magnets 126 are provided at second positions r2 radially inside of or on the surface of the rotary core 122. Each of the multiple low-coercivity magnets 126 is disposed at a position in the circumferential direction corresponding to the space 128. The multiple high-coercivity magnets 124 are magnetized in the circumferential direction and polarities of the adjacent high-coercivity magnets 124 are reverse. The multiple low-coercivity magnets 126 are magnetized in the radial direction, and their polarities are switchable.SELECTED DRAWING: Figure 1
【課題】特性が可変である永久磁石モータを提供する。【解決手段】複数の高保磁力磁石１２４は、回転子鉄心１２２の径方向の内部または表面の第１位置ｒ１に、周方向にスペース１２８を隔てて配置される。複数の低保磁力磁石１２６は、回転子鉄心１２２の径方向の内部または表面の第２位置ｒ２に設けられる。複数の低保磁力磁石１２６はそれぞれ、スペース１２８に対応する周方向の位置に配置される。複数の高保磁力磁石１２４は、周方向に磁化され、隣接する高保磁力磁石１２４の極性が逆向きである。複数の低保磁力磁石１２６は、径方向に磁化され、それぞれの極性が切りかえ可能である。【選択図】図１
PERMANENT MAGNET MOTOR AND ELECTRICALLY-DRIVEN ROTARY SHOVEL USING THE SAME
永久磁石モータおよびそれを用いた電動旋回ショベル
HIRATA MASATAKA (author) / MORIYA KOJI (author)
2017-08-17
Patent
Electronic Resource
Japanese
Twelve-cubic yard electrically-driven stripping shovel
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